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iOS Swift Basics Swift Operators Working With Operators: Part 2

Posted by Matthew Gravagna
Matthew Gravagna
2,285 Points

In this game of ours, we have an odd scoring mechanism . At the end of the round, if your score is 10, you lose! If it's

In this game of ours, we have an odd scoring mechanism . At the end of the round, if your score is 10, you lose! If it's anything but 10, you win.

Declare a constant named isWinner and assign the results of a comparison operation to check whether the player has won or not. For example, if the total score is not 10, then the player has won and isWinner should equal true. (Hint: Use the NOT operator)

Please help me with this. The videos are not detailed enough that they taught this. in the video it says the NOT operators are let on = true and then it says let off = !on

so what are the comparisons?

operators.swift 
// Enter your code below

var initialScore = 8

initialScore += 1



let isWinner: true

5 Answers

Juno Jo
Juno Jo
4,981 Points
Juno Jo
Juno Jo
4,981 Points 
var initialScore = 8
initialScore += 1
var totalScore = 10

let isWinner: Bool = totalScore >= initialScore
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

You will want to check if initialScore is not equal to 10 and assign the result to isWinner. This can be done in one line.

Matthew Gravagna
Matthew Gravagna
2,285 Points
Matthew Gravagna
Matthew Gravagna
2,285 Points

How?

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

The not operator is !=

let isWinner = initialScore != 10
Matthew Gravagna
Matthew Gravagna
2,285 Points

So i can just do it in one line. When they do examples in the videos they do it separately

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

Yes you can do it in one line and based on how the challenge is worded what it expects . Otherwise an if statement would work for more than one line.